CN101653330B

CN101653330B - Low temperature showcase

Info

Publication number: CN101653330B
Application number: CN2009101475045A
Authority: CN
Inventors: 井口治信; 山泽圭佑; 板桥达也
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 2008-08-21
Filing date: 2009-06-16
Publication date: 2011-11-23
Anticipated expiration: 2029-06-16
Also published as: AU2009202747A1; JP5372432B2; AU2009202747B2; US20100043472A1; US8429923B2; JP2010048457A; CN101653330A

Abstract

An object is to provide a low temperature showcase in which waste heat from a condenser and the like can be utilized by a simple constitution to effectively eliminate dew condensation on a middle pillar, particularly on gasket of upper part of a door. The low temperature showcase includes a middle pillar whose front surface abuts on the gasket of the door; a machine chamber disposed outside a main body under a display chamber and including the condenser, a fan for the condenser and the like, and the showcase further includes a middle pillar duct member which is vertically attached to the middle pillar and in which a middle pillar duct is defined, a leading portion which leads air from the machine chamber into the middle pillar duct, and exhaust holes which discharge the air flowing upwards through the duct to the outside of the gasket between the upper part of the door and the main body.

Description

Low-temperature showcase

Technical field

The present invention relates to the front openings switch that a kind of goalkeeper of utilization seals the showroom and seal the low-temperature showcase that forms freely.

Background technology

This existing low-temperature showcase for example is arranged at the showcase in shops such as convenience store and supermarket, and the front openings that constitutes the heat insulating box of showroom in inside is sealed (for example with reference to patent documentation 1) by door (for example glass door).In addition, bottom outside heat insulating box constitutes the Machine Room, the compressor, condenser, condenser that the freeze cycle that constitutes cooling device is set in this Machine Room is with fan etc., simultaneously, in the showroom, set the cooler that constitutes same freeze cycle, by this cooler with the low temperature that is cooled in the showroom stipulate.

In addition, the front openings portion in the showroom is provided with B-C post.This B-C post can fit tightly with the sealing gasket of the door inner face that for example is installed on opposite opened, thus, realizes the keeping of seal in the showroom when door is closed.

At this, the structure of existing low-temperature showcase 100 is described with reference to Figure 10～Figure 12.The stereogram of the state of Figure 10 is pulling down of existing low-temperature showcase 100 door, Figure 11 is the flat sectional drawing of low-temperature showcase 100, Figure 12 is the round D enlarged drawing partly of Figure 11.

Low-temperature showcase 100 constitutes main body by the heat insulating box 101 of front openings, is formed with showroom 102 in this heat insulating box 101.And, below this heat insulating box 101, being formed with the Machine Room, this front, Machine Room is sealed freely by front panel 103 switches.

102 front openings is provided with the glass door 106,106 of opposite opened in the showroom.The sealing gasket 107 of (magnet) 107M that possesses magnetic is installed at this circumference back side of 106.And for example central portion of 102 front openings 104 in the showroom spreads all over the upright up and down B-C post 105 that forms column that is provided with.And by the magnet 107M in the sealing gasket 107 of being located at glass door 106, the sealing gasket 107 of the side end back of the front 105A of B-C post 105 and each open sides of glass door 106 fits tightly, thus with showroom 102 inner sealings.

At this, as shown in figure 12, B-C post 105 constitutes by the rear board 108 that extends to form up and down, front panel (metal system) 109 with the resin system cushion 110,110 of 108,109 bindings of these panels, and there is heat-barrier material 111 in the space that is centered on by these panels 108,109 and cushion 110,110 by foam filling.

But when cooling off in to showroom 102, the frame of B-C post 105 self and glass door 106 all is exposed in the cold air.Sealing gasket 107 surfaces of the front 105A of the B-C post 105 that therefore, contacts with atmosphere and glass door 106 will produce dewfall.When such dewfall produces, be attached to the finger of the wetting execution switch of dew on B-C post 105 grades in the time of can producing switch glass door 106 or the unfavorable condition of the dew moistened garments that splashes because of switch motion.In addition, fall, thereby can produce the wetting unfavorable condition that floor etc. is set owing to be attached to the water droplet that the dewfall of glass door 106 produces.

Therefore, for preventing the generation of this dew, the back of the front panel 109 that fits tightly later at the side end of the open sides of glass door 106, with the status exchange heat of butt set electric heater (rope type heater), by this electric heater is switched on, the front panel 109 of heating B-C post 105 suppresses the generation dewfall to glass door 106 and sealing gasket 107 and then B-C post front 105A.

Patent documentation 1: Japanese kokai publication hei 9-101075 communique

But the heating of such electric heater, exists to cause the surging problem of running cost so the power consumption of showcase self is increased owing to continue to switch on.In addition, because electric heater is equipped in the heat-barrier material 111 of B-C post 105, therefore, when the unfavorable conditions such as broken string of heater have taken place flow chart, there is irreparable problem.

Summary of the invention

So the present invention foundes for solving existing technical task, its purpose is, a kind of low-temperature showcase is provided, by simple formation, be used to the used heat of self cooling condenser etc., can eliminate effectively to B-C post, the particularly dewfall of the sealing gasket on door top.

The invention provides a kind of low-temperature showcase, it possesses: the showroom that constitutes in the main body that is made of thermal wall, possess sealing gasket that the front openings edge with this showroom fits tightly and the door that this front openings is opened and closed sealing freely, be located at the B-C post of the described sealing gasket of the described door of the peristome of described showroom and front butt, the Machine Room that constitutes outside the thermal wall below described showroom, by the compressor that is equipped in this Machine Room, condenser, the refrigeration unit that condenser constitutes with fan etc., it is characterized in that, possess: the B-C post passage component, it spreads all over installing up and down of described B-C post, inner formation B-C post passage; Introduction part, it will import in the described B-C post passage from the air that described condenser blows out with fan; Steam vent, its air that will rise in described B-C post passage is discharged towards the outside of described door top and described intersubjective described sealing gasket.

Second aspect present invention provides low-temperature showcase on the basis of foregoing invention, it is characterized in that, described B-C post passage component is provided with a plurality of described steam vents, and the aperture area of described steam vent is set to more upwards big more.

Third aspect present invention provides low-temperature showcase on the basis of foregoing invention, it is characterized in that, described B-C post passage component is located at the front of described B-C post.

According to the present invention, a kind of low-temperature showcase is provided, it possesses: the showroom that constitutes in the main body that is made of thermal wall, possess sealing gasket that the front openings edge with this showroom fits tightly and the door that this front openings is opened and closed sealing freely, be located at the B-C post of the described sealing gasket of the described door of the peristome of described showroom and front butt, the Machine Room that constitutes outside the thermal wall below described showroom, by the compressor that is equipped in this Machine Room, condenser, the refrigeration unit that condenser constitutes with fan etc., wherein, also possess: the B-C post passage component, it spreads all over installing up and down of described B-C post, inner formation B-C post passage; Introduction part, it will import in the described B-C post passage from the air of described condenser with the fan ejection; Steam vent, its air that will rise in described B-C post passage is discharged towards the outside of described door top and described intersubjective described sealing gasket, therefore, can directly discharging to the outside of door top and intersubjective sealing gasket from the heating installation in the Machine Room (used heat) in the B-C post passage will be imported to by introduction part.Thus, can heat this top and intersubjective sealing gasket by heating installation, thereby near the B-C post surface the sealing gasket of being located at a top and sealing pad is difficult to take place dewfall.

Therefore, can be suppressed at unfavorable condition to the user of water-drop sputtering that door is attached to a top when carrying out switch motion, and the unfavorable condition of the wetting floor of this water droplet etc.In addition,, therefore, can realize and a raising of the fitting tightly property of the inside, can suppress the leakage of the cold air in the showroom because dew is difficult to the B-C post surface attached to the association part.

According to second aspect, on the basis of foregoing invention, a plurality of steam vents are set on the B-C post passage component, and, the aperture area of each steam vent is set to more upwards big more, therefore, heating installation can be discharged to effectively away from Machine Room and the top that needs heating installation to arrive, near the B-C post surface that dewfall is difficult to the sealing gasket of being located at a top and sealing pad produces.

According to the third aspect, on the basis of above-mentioned each invention, the B-C post passage component is located at the front of B-C post, therefore, can B-C post passage component that be located at the B-C post front be heated by the conduction heat of the heating installation that blows out with fan from condenser that rises in the B-C post passage.

Thus, spread all over atmosphere contact the B-C post passage component about, its surface is difficult to take place dewfall.Therefore, and dewfall can not take place on the sealing gasket of the door of the front butt of B-C post passage component yet, thus the unfavorable condition of wetting finger and be attached to the unfavorable condition of the wetting floor of water droplet etc. of a inside can suppress door and carry out switch motion the time.In addition,, therefore, the raising of the B-C post front and the fitting tightly property of the sealing gasket of door can be realized, the leakage of the cold air in the showroom can be suppressed because dew is difficult to attached to the B-C post surface.

Description of drawings

Fig. 1 is the stereogram that has been suitable for low-temperature showcase of the present invention;

The exploded stereogram of the showcase of the state of Fig. 2 is pulling down of Fig. 1 door;

Fig. 3 is the vertical profile side view of Fig. 1;

Fig. 4 is the cross-sectional plane of Fig. 1;

Fig. 5 is the enlarged drawing of the round A part of Fig. 1;

Fig. 6 is the enlarged drawing of the round B part of Fig. 5;

Fig. 7 is the amplification profile of the showcase bottom of Fig. 3;

Fig. 8 is the amplification profile on the showcase top of Fig. 3;

Fig. 9 is the enlarged drawing of the round C part of Fig. 2;

The stereogram of the state of Figure 10 is pulling down of existing low-temperature showcase door;

Figure 11 is the flat sectional drawing of Figure 11;

Figure 12 is the round D part enlarged drawing of Figure 11.

Description of reference numerals

1 low-temperature showcase

2 main bodys (heat insulating box)

The 2A diapire

The 2B back wall

The 2C roof

3

4 glass

8 showrooms

10 passages

16 cold air blow-off outlets

17 suction inlets

18 Machine Rooms cover

19 exhaust outlets (blowing out portion)

20 portions that uncover

21 Machine Rooms

24 coolers

34 condensers

35 condenser fans

40 sealing gaskets

41 B-C posts

42 B-C post passages

43 front panels

44 cushions

45 B-C post passage components

50 introduction parts

The specific embodiment

Below, with reference to accompanying drawing, embodiments of the present invention are elaborated.Fig. 1 represents the stereogram of low-temperature showcase 1, the exploded stereogram of the low-temperature showcase 1 of the state of having pulled down door 3 of Fig. 2 presentation graphs 1, the vertical profile side view of Fig. 3 presentation graphs 1, Fig. 4 represents the cross-sectional plane of low-temperature showcase 1, Fig. 5 is the enlarged drawing of the round A of Fig. 4, the enlarged drawing of the round B of Fig. 6 presentation graphs 5, the amplification profile of low-temperature showcase 1 bottom of Fig. 7 presentation graphs 3, the amplification profile on low-temperature showcase 1 top of Fig. 8 presentation graphs 3, the enlarged drawing of the round C of Fig. 9 presentation graphs 2.

The low-temperature showcase 1 of present embodiment is for being arranged at retail shops such as supermarket and convenience store, and the low-temperature showcase of commodity is displayed in cooling simultaneously, and the heat insulating box (thermal wall) that is had opening by the front constitutes main body 2.This main body 2 by the interior case 6 of the steel plate of the outer container 5 of the steel plate system of front openings and the front openings that devices spaced apart is installed in this outer container 5 or hard resin system and foam filled in outer container 5 and in the heat-barrier material 7 that forms by polyurathamc of 6 in case constitute.In addition, in the present embodiment, the front end of cause roof 2C extends given size downwards and constitutes on the front openings of this main body 2.

And, form the showroom 8 of opening forwards in the inboard of interior case 6.This front openings (peristome) 8A seals freely by having opposite opened

door

3,3 switches that can have an X-rayed inner glass 4.Each 3 is that pivot supporting is freely rotated at the center by hinge member 11 with a side of main body 2.In addition, narrate about the back that is formed in detail of door 3.

Angle brace 12 with specified altitude is installed in the bottom surface of main body 2, and the two sides of this angle brace 12 are covered by decoration panel 13 with the two sides of main body 2.Thus, below main body 2, outside thermal wall, be formed with the Machine Room 21 that the place ahead has opening.And, on the diapire 2A of main body 2, be formed with cold air sucting inlet 14 and cold air blow-off outlet 15 respectively with the mode front and back that connect heat-barrier material 5.

On formation Machine Room 21, below the diapire 2A of the main body 2 on top, above being provided with, butt has the cooler bin 22 of opening.Form cooling chamber 23 in the inside of this cooler bin 22, be equipped with cooler that the front side of the cooler 24 that constitutes cooling device and this cooler 24 sets with fan 25.In addition, this above cooler bin 22 opening be formed with the cold air sucting inlet 27 and the cold air blow-off outlet 28 of cooler bin 22 sides.Above-mentioned cooling suction inlet 14 and the cold air blow-off outlet 15 with the diapire 2A that is formed at main body 2 is corresponding respectively for these cooling suction inlets 27 and cold air blow-off outlet 28.

On the other hand, the dividing plate 9 of the path 10 that is communicated with on the top that the installed inside of the back wall 2B of main body 2 has formation will be formed at cold air blow-off outlet 15 on the diapire 2A and showroom 8.Be formed with the cold air blow-off outlet 16 that is used to supply with the cold air that blows out with fan 25 from cooler in the upper end of this dividing plate 9, and, on the dividing plate 9 that constitutes 8 back sides, showroom, be formed with a plurality of opening 9A.

On the other hand, in above-mentioned Machine Room 21, be provided with the refrigerant loop that together constitutes freeze cycle with above-mentioned cooler 24, the refrigeration unit R that constitutes with fan 35 by compressor 33, condenser 34 etc. with to the condenser of their air-supplies etc.

And the front of Machine Room 21 opens and closes sealing freely by the Machine Room cover 18 that is equipped with a plurality of suction inlets 17.This Machine Room cover 18 below that 21 front openings edge extend to above-mentioned door 3 from the Machine Room forms.Shown in the partial enlarged drawing of Fig. 7, Machine Room cover 18 top the position corresponding with front openings (peristome) the 8A bottom of showroom 8 along about (length direction) extend to form the exhaust outlet (blowing out portion) 19 of a plurality of openings upward, and, be formed with the opening edge that is lower than this exhaust outlet 19 in the front side of this exhaust outlet 19 and the portion that uncovers 24 that forms.

In addition, be positioned at this condenser and fan drum 26 (with reference to Fig. 3) be installed for being disposed at condenser in the Machine Room 21 with fan 35, spreading all over the upper end of the condenser 34 of the front side (18 sides are covered in the Machine Room that promptly is equivalent to air sucking side) of fan 35.The front end of this fan drum 26 spreads all over the inside that is positioned at suction inlet 17 tops of Machine Room cover 18 and constitutes, thus, constitute with suck from suction inlet 17 and by the exhaust passage 51 that forms between the diapire 2A of the part of air after the waste heat of condenser 34 via fan drum 26 and main body 2 from exhaust outlet 19 exhaust upward.In addition, in the present embodiment, fan drum 26 forms and spreads all over the Machine Room and cover 18 the insides, but is not limited thereto, as long as can constitute exhaust passage 51, and also can be by the above formations such as dividing plate of two parts.

Secondly, the formation of opposite house 3 describes.The doorframe 3A that door 3 is made of for example hard resin, inner face (constituting the face of showroom 8 sides) sealing gasket 40 formations on every side that embed the transparent multilaminar glass 4 of this doorframe 3A and be installed in doorframe 3A.Be formed with a plurality of not shown air vent that connects inside at above-below direction on the doorframe 3A of the bottom that constitutes door 3, this air vent is at the outside of glass 4 (opposition sides of showroom 8 sides) opening.In addition, in sealing gasket 40, be provided with the magnet that is used for fitting tightly sealing as magnetic with the front openings edge 8A of showroom 8.

And, in the present embodiment, constitute by the door 3 of the opposite opened of same size roughly, therefore, the substantial middle at the peristome 8A of main body 2 spreads all over upright up and down being provided with and the B-C post 41 that is positioned at sealing gasket 40 butts of each center side of 3.Shown in the stereogram of Fig. 2, such B-C post 41 constitutes by the not shown metal rear board that extends to form up and down, front panel 43 and with the

resinous cushion

44,44 that links between these panels, and foam filling has heat-barrier material in the space that is centered on by these panels 43, cushion 44.The front of the front panel 43 that is made of the metal prepared material and the front end of two cushions 44 constitute roughly with one side.

And, in the position corresponding with the front of this B-C post 41, be equipped with and these B-C post 41 fronts between constitute the B-C post passage component 45 of B-C post passage 42.This B-C post passage component 45 is made of material, for example steel plate property material that front panel 43 at least can fit tightly by the magnet of magnetic force and sealing gasket 40, as shown in Figure 8, its upper end is the front of the roof 2C of main body 2, at least extend to the top 40A top that is higher than door 3 sealing gasket 40, extend to the upper limb top that is higher than door 3 in the present embodiment and constitute.In addition, as shown in Figure 7, its lower end be main body 2 diapire 2A the front or than the front by down, extend in the exhaust outlet 19 that is formed on the above-mentioned Machine Room cover 18 and constitute.

In the present embodiment, the lower end of this B-C post passage component 45 is formed with the introduction part 50 at exhaust outlet 19 inner openings of Machine Room cover 18, constitutes the Machine Room 21 interior exhausts that can make from exhaust outlet 19 is discharged and flow in the B-C post passage 42 via this introduction part 50.

And, as shown in Figure 6, this B-C post passage component 45 is set at the position of avoiding sealing gasket 40 of two fan doors 3, its cross section under closing door 3 state with the size in the gap size between the front of roof 2C front, B-C post 41 fronts and the diapire 2A of the back that can be contained in doorframe 3A and main body 2, present the roughly コ word shape of (B-C post 41 sides) opening rearward, its two side ends becomes flange 45A, the 45A of warpage formation toward the outer side.

The inside of these

flanges

45A, 45A can with the front butt of roof 2C front, B-C post 41 fronts and the diapire 2A of main body 2, be used for by the fastening and fixing screw hole 46 of screw being formed with the position of the front butt of roof 2C and with the position of the front butt of diapire 2A.Therefore, the upper end of this B-C post passage component 45 overlaps by the screw hole 46 that makes the not shown screw hole that is formed at roof 2C front and this passage component 45 use screw 47 fixing, and the lower end of B-C post passage component 45 overlaps by the screw hole 46 that makes the screw hole 48 that is formed at diapire 2A front and this passage component 45 uses screw 47 to fix.

At this moment, the front of the front of roof 2C, diapire 2A and the front of B-C post 41 are roughly with one side, and therefore, the flange 45A of B-C post passage component 45 and B-C post 41 fronts are provided with by butt.

And, in the two sides, top of this B-C post passage component 45, on have a plurality of steam vent 51....As Fig. 8 and shown in Figure 9, these steam vents 51 are formed, and the area that the open area ratio downside of the steam vent 51 that upside forms forms is big.In addition, as shown in Figure 8, the sealing gasket 40 top 40A that the part of these steam vents 51 is positioned at than door 3 more form by upside.

In addition, as shown in Figure 9, the upper end of this B-C post passage component 45 opening upward forms, but is not limited thereto, and also upper wall can be set and with upper end closed.

By such formation, under the state of having closed door 3, B-C post passage component 45 is located in the gap that forms between doorframe 3A back and B-C post 41 fronts under the state of the sealing gasket 40 of avoiding door 3, therefore, obstacle in the time of can not becoming switch door 3, sealing pad 40 can with the B-C post passage component 45 both sides butts of the front of B-C post 41, the magnetic force of the magnet by being located at sealing pad 40 inside can fit tightly with the front panel 43 of B-C post 41.

By above-mentioned formation, when refrigeration unit R turns round, the cooler 24 performance cooling effects in the cooling chamber 23.At this moment, turn round with pressure fan 25 by making cooler, via rising in the path 10 of cold air blow-

off outlet

28,15 in main body 2, the place ahead, 8 top blows out the part of this cold air towards the showroom from cold air blow-off outlet 16 by cooler 24 cooled cold air.Shown in solid arrow among Fig. 3, be blown out to cold air in the showroom 8 towards front openings 8A top, promptly door 3 tops blow out, descend also in showroom 8, circulate after, return in the cooling chamber 23 via cold air sucting inlet 14,27.Thus, be cooled to the temperature of regulation in the showroom 8.

At this moment, in the low-temperature showcase 1 that carries out this circulating cold air, just begun to blow to the cold air of the low temperature in the showroom 8, temperature is minimum near the doorframe 3A on door 3 tops that chain-dotted line centers in Fig. 1.Therefore, in such part, in the front of the B-C post 41 that contacts with atmosphere and sealing gasket 40 surfaces of door 3 dewfall takes place easily.

In the present embodiment,, the atmosphere in 21 the place aheads, Machine Room is at first flowed in the Machine Room 21 that is centered on by fan drum 26 via the suction inlet 17 of Machine Room cover 18, condenser 34 is carried out air cooling by the running of condenser with fan 35.By condenser 34 air coolings are flow in the exhaust passage 51 that the diapire 2A by fan drum 26 and main body 2 forms by the part of the atmosphere (heating installation) of being heated, and the steam vent 19 of formation about spreading all on Machine Room cover 18 blows out (being represented by the blacking arrow Fig. 7) upward.

A part that is blown out to the heating installation of top from steam vent 19 can not be diffused into the surrounding air, but flow in the B-C post passage 42 from the introduction part 50 that is formed on the B-C post passage component 45, and rises in this passage 42.The heating installation that rises in this passage 42 is discharged from sealing gasket 40 outsides of each steam vent 51... towards between door 3 tops and main body 2 (B-C post 41) that are formed at B-C post passage component 45 tops.

In the present embodiment, steam vent 51 is formed on the two sides, top of the B-C post passage component 45 in the gap between the front of diapire 2C front, B-C post 41 fronts and diapire 2A in the back that is contained in doorframe 3A, main body 2, therefore, can between the back of the doorframe 3A of door 3 and the main body 2 towards the sealing gasket 40 on each 3 top, be top 40A, and the direct discharge heating installation in each outside of the corner portion that constitutes with the top of the sealing gasket 40 of B-C post 41 butts and then by sealing pad 40 and top 40A of sealing gasket 40.

Particularly, as mentioned above, near the doorframe 3A on door 3 tops like this, owing to be supplied to the cold air that just is blown out to the low temperature in the showroom 8, thereby temperature is minimum in sealing gasket 40 surfaces of the front of the B-C post 41 that contacts with atmosphere and door 3, therefore be easy to generate dewfall, but, by like this, owing to can sealing gasket 40 tops of 2 of the doorframe 3A of door 3 and main bodys directly be heated by supplying with heating installation, therefore, be located at the sealing gasket 40 on such door 3 tops and near B-C post 41 surfaces the sealing pad 40 and be difficult to take place dewfall.

Therefore, can suppress door 3 and be attached to the water-drop sputtering on door 3 tops when carrying out switch motion to user's situation, and unfavorable condition such as the wetting floor of this water droplet.In addition,, therefore, can realize and a raising of the fitting tightly property of 3 the insides (sealing gasket 40), can suppress the leakage of the cold air in the showroom 8 because dew is difficult to B-C post 41 surfaces attached to such part.

In addition, in the present embodiment, the steam vent 51 that is formed on the B-C post passage component 45 is set according to the big more mode of aperture area of top steam vent 51, therefore, heating installation can be discharged to effectively away from Machine Room 21 and top that need heating installation to arrive.Therefore, can make dewfall be difficult to produce effectively at the sealing gasket 40 of being located at door 3 tops and near 41 surfaces of the B-C post the sealing pad 40.

In addition, in the present embodiment, B-C post passage component 45 is located at the front of B-C post 41, and therefore, the conduction heat of the heating installation that can blow out with fan 35 since condenser by coming of rising in B-C post passage 42 heats the B-C post passage component 45 of being located at B-C post 41 fronts.

Thus, spread all over atmosphere contact B-C post passage component 45 about, all be difficult to produce dewfall on its surface.Therefore, with the sealing gasket 40 of the door 3 of the front butt of B-C post passage component 45 on also be difficult to produce dewfall, the unfavorable condition of wetting finger and be attached to the unfavorable conditions such as the wetting floor of water droplet of a inside in the time of can suppressing door 3 and carry out switch motion.In addition,, therefore, the raising of B-C post 41 fronts and the fitting tightly property of the sealing gasket 40 of door 3 can be realized, the leakage of the cold air in the showroom 8 can be suppressed because dew is difficult to attached to B-C post 41 surfaces.

In addition, the introduction part 50 of being located at the lower end of B-C post passage component 45 forms corresponding to the exhaust outlet 19 that forms on the above-mentioned Machine Room cover 18, therefore, need not be provided for guiding device especially, just can effectively the heating installation from Machine Room 21 be imported in the B-C post passage 42 from the heating installation of Machine Room 21.

In addition, in the above-mentioned formation, B-C post passage 42 can constitute by in the front of being located at the B-C post on the existing showcase B-C post passage component 45 being installed, and therefore, the design alteration that need not carry out B-C post just can realize the present invention.

Claims

1. low-temperature showcase, it possesses: the showroom that constitutes in the main body that is made of thermal wall, possess sealing gasket that the front openings edge with this showroom fits tightly and the door that this front openings is opened and closed sealing freely, be located at the B-C post of the described sealing gasket of the described door of the peristome of described showroom and front butt, the Machine Room that constitutes outside the thermal wall below described showroom, be equipped on the compressor that has in this Machine Room, condenser, the condenser refrigeration unit of fan, it is characterized in that

Also possess:

The B-C post passage component, it spreads all over installing up and down of described B-C post, inner formation B-C post passage;

Introduction part, it will import in the described B-C post passage from the air that described condenser blows out with fan;

Steam vent, its air that will rise in described B-C post passage is discharged towards the outside of described door top and described intersubjective described sealing gasket.

2. low-temperature showcase as claimed in claim 1 is characterized in that, described B-C post passage component is provided with a plurality of described steam vents, and the aperture area of described steam vent is set to more upwards big more.

3. low-temperature showcase as claimed in claim 1 or 2 is characterized in that described B-C post passage component is located at the front of described B-C post.